Home / 388,096,908.80-582,145,363.20-380,444,158.40

Finding the Fourth Proportional to 388,096,908.80, 582,145,363.20 and 380,444,158.40

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Solution

The fourth proportional to 388,096,908.80, 582,145,363.20 and 380,444,158.40 is: 570,666,237.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,096,908.80 : 582,145,363.20 = 380,444,158.40 : x
  2. Step 2: Convert to fraction form
    388,096,908.80/582,145,363.20 = 380,444,158.40/x
  3. Step 3: Cross multiply
    388,096,908.80x = 582,145,363.20 × 380,444,158.40
  4. Step 4: Simplify right side
    388,096,908.80x = 221,473,802,769,086,336
  5. Step 5: Solve for x
    x = 221,473,802,769,086,336/388,096,908.80
  6. Step 6: Final answer
    x = 570,666,237.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.